SDR K11A2025092200349

Service difficulty report · Cabin Pressure · Boeing 7374H6

Difficulty date: September 22, 2025
Submitted: September 22, 2025
Operation: Air carrier
Aircraft: N307GT
Make and model: Boeing 7374H6
Aircraft serial: 26455
Aircraft time: 53,750 hours, 43,536 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Cabin Pressure
Condition: Faulted
Location: Zone 200
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AUTO FAIL LIGHT ILLUMINATED AFTER TAKE-OFF, CABIN ALTITUDE NOT CONTROLLABLE IN AUTO OR STANDBY MODES. FOUND L1 DOOR AJAR UPON RETURNING TO GATE. OPS CHECK L1 DOOR IAW B737 AMM 52-11-00, NO DEFECTS NOTED. PERFORMED OPS CHECK OF CABIN PRESSURIZATION CONTROL SYSTEM IAW B737 AMM 21-31-00. OPS CHECK GOOD.

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